It seems likely that https://go-review.googlesource.com/c/23487/6/src/crypto/tls/tls_test.go introduced code that does not pass the race detector (races are reported in code added there).
It seems likely that https://go-review.googlesource.com/c/23487/6/src/crypto/tls/tls_test.go
introduced code that does not pass the race detector (races are reported in code added there).